package io;

import java.io.FileInputStream;
import java.io.FileNotFoundException;
import java.io.FileOutputStream;
import java.io.IOException;

public class CopyDemo {
    public static void main(String[] args) throws IOException {
        FileInputStream fis = new FileInputStream("./image.jpg");
        FileOutputStream fos = new FileOutputStream(".image_cp.jpg");

        int d;
        long start=System.currentTimeMillis();
        while ((d=fis.read())!=-1){
            fos.write(d);

        }
        System.out.println("复制完毕！");
        fis.close();
        fos.close();

        long end=System.currentTimeMillis();
        System.out.println("复制完毕！耗时："+(end-start)+"毫秒(ms)");
        fis.close();
        fos.close();
















    }
}
